Whenever there shall not for the Time being be any Duke of Cornwall, it shall be lawful for the Sovereign for the Time being from Time to Time, by Warrant under the Royal Sign Manual, to be countersigned by any Three or more of the Commissioners of the Treasury of the United Kingdom, to authorize such and so many of the regular Officers of the said Duchy, who by virtue of their several Appointments and Offices may be concerned in the general Superintendence and Management of the Revenues and Affairs of the said Duchy, or any other Persons, being not more than Five and not less than Three in Number, as the Sovereign may think fit, in the Name and on behalf of the Sovereign, to exercise all or any of the Rights, Powers, Privileges, and Authorities which are by this Act made exerciseable or which shall otherwise for the Time being be exerciseable by the Sovereign in relation to the said Duchy, and to commit to any One or more of the regular Officers authorized to act in the Name and on behalf of the Sovereign as aforesaid the Custody of the Seal of the said Duchy.